Optimization of transmitted pulse shape and receiver timing...

H - Electricity – 04 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04L 27/02 (2006.01) H04B 17/00 (2006.01) H04L 1/12 (2006.01) H04L 7/033 (2006.01) H04L 7/10 (2006.01) H04L 25/03 (2006.01) H04L 7/00 (2006.01) H04L 7/02 (2006.01)

Patent

CA 2176478

In digital transmission, the combination of transmitted pulse shape and receiver sampling time that maximizes the magnitude of the channel output pulse sample is determined. The transmitted pulse shape is represented as a linear combination of orthonormal functions. The coefficients that multiply each of the functions are determined by measuring at the receiver (200) and transmitting back to the transmitter (100) the response of the channel to each independently transmitted function at an approximation to the optimal sampling time. A pulse shape is formed using the calculated coefficients and is transmitted to the receiver where the timing of its maximum is determined, which represents a next approximation to the optimal sampling time. By repeating a plurality of times the processes of transmitting the functions, measuring at the receiver and transmitting back to the transmitter the responses at the approximation to the optimal sampling time, calculating the coefficients, transmitting a pulse, and determining a next approximation to the optimal sampling time from the timing of the maximum in the received pulse, the coefficients and optimal sampling time will converge.

En transmission numérique, on détermine la combinaison de la forme d'impulsions émises et le temps d'échantillonnage du récepteur maximisant l'intensité de l'échantillon d'impulsion de sortie du canal. La forme de l'impulsion émise est représentée sous forme de combinaison linéaire de fonctions orthonormales. On détermine les coefficients multiplicateurs de chaque fonction en mesurant au niveau du récepteur (200) et en renvoyant à l'émetteur (100) la réponse de la voie à chaque fonction transmise indépendamment selon une approximation du temps d'échantillonnage optimum. Une forme d'impulsion est obtenue au moyen des coefficients calculés, et est transmise au récepteur où la synchronisation de son maximum est déterminée, ce qui représente l'approximation suivante du temps d'échantillonage optimum. La répétition des opérations de transmission des fonctions, de mesure au niveau du récepteur et de renvoi à l'émetteur des réponses selon l'approximation du temps d'échantillonnage optimum, le calcul des coefficients, la transmission d'une impulsion et la détermination de l'approximation suivante du temps d'échantillonnage optimum à partir de la synchronisation du maximum dans l'impulsion reçue permet de faire converger les coefficients et le temps d'échantillonnage optimum.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Optimization of transmitted pulse shape and receiver timing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optimization of transmitted pulse shape and receiver timing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimization of transmitted pulse shape and receiver timing... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1511295

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.